{"id":"CVE-2021-27203","aliases":["EUVD-2021-13968","GHSA-rg7c-qr9w-vgfh"],"status":"published","title":"In Dekart Private Disk 2.15, invalid use of the Type3 user buffer for IOCTL codes using...","description":"In Dekart Private Disk 2.15, invalid use of the Type3 user buffer for IOCTL codes using METHOD_NEITHER results in arbitrary memory dereferencing.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00379,"percentile":0.32361,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2021-02-16T19:52:37Z","modified":"2026-06-17T03:44:27Z","products":[{"vendor":"dekart","product":"private_disk"}],"references":[{"url":"https://www.dekart.com/products/encryption/private_disk","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://www.rootshellsecurity.net/rootshell-discover-denial-of-service-flaw-dekart-private-disk-encryption-software/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27203"},{"url":"https://github.com/advisories/GHSA-rg7c-qr9w-vgfh"}],"sources":{"cve":[{"id":"CVE-2021-27203","description":"In Dekart Private Disk 2.15, invalid use of the Type3 user buffer for IOCTL codes using METHOD_NEITHER results in arbitrary memory dereferencing.","status":"published","published":"2021-02-16T19:52:37Z","modified":"2024-08-03T20:40:47.38Z","updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-13968","description":"In Dekart Private Disk 2.15, invalid use of the Type3 user buffer for IOCTL codes using METHOD_NEITHER results in arbitrary memory dereferencing.","status":"published","published":"2021-02-16T19:52:37Z","modified":"2024-08-03T20:40:47Z","updated_at":"2026-11-03T03:24:49.808499Z"}],"ghsa":[{"id":"GHSA-rg7c-qr9w-vgfh","title":"In Dekart Private Disk 2.15, invalid use of the Type3 user buffer for IOCTL codes using...","description":"In Dekart Private Disk 2.15, invalid use of the Type3 user buffer for IOCTL codes using METHOD_NEITHER results in arbitrary memory dereferencing.","status":"published","published":"2022-05-24T17:42:22Z","modified":"2023-01-29T05:05:27Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:45:47.837276Z"}],"nvd":[{"id":"CVE-2021-27203","description":"In Dekart Private Disk 2.15, invalid use of the Type3 user buffer for IOCTL codes using METHOD_NEITHER results in arbitrary memory dereferencing.","status":"published","published":"2021-02-16T20:15:16.407Z","modified":"2026-06-17T03:44:27.64Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:50.031227Z"}]}}